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RH Exhaust manifold

Printed From: The Ford Torino Page
Category: Engine Specific Forum
Forum Name: Big Block Engine Forum
Forum Description: 429 and 460 engines
URL: http://forum.grantorinosport.org/forum_posts.asp?TID=16696
Printed Date: 22-November-2017 at 4:38AM
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: RH Exhaust manifold
Posted By: 72LincolnAbe
Subject: RH Exhaust manifold
Date Posted: 13-November-2017 at 8:46AM
Hi all, me again! Ok, I think after this, I'll be ok for a few lol.  Does anyone have a used RH 460 exhaust manifold laying around? Any tips would be appreciated, I myself cannot see any real difference with all the different right side manifolds available, and I'm trying not to spend set of headers kinda cash on just one manifold. The car needs a whole exhaust at any rate, and that manifold is either cracked or has a hole in it somewhere. So if something may fit my Lincoln, and I can get a flange to it, I'm in!

Thank you all so much! Much more pleasant than a lot of forums I've been a part of!



Replies:
Posted By: aquartlow
Date Posted: 13-November-2017 at 9:04AM
If you don't know for sure about the exhaust manifold having a crack or hole in it, ( and if you have '72-'86 heads) check the air pump fitting/tubing that attaches to the rear of both heads. The tubing rots/rusts after a period of time(yes, time for it to happen has long since passed). If you find that this is the culprit for the leak, you can replace the crossover tube or at least just the ends(after cutting and welding the tubes shut) or you can strategically drill a hole in the PS firewall so you can install/drive the necessary welch plug to stop the leak(after removing all remnants of the crossover tubing of course). The ends of the crossover tube are held in place with (IIRC) 1/2" headed bolts. Good luck and let us know what you find.

-------------
www.supermotors.net/22468
Yeah, It's a Hybrid...It burns gas and tires.

No matter how good she looks, somebody, somewhere, is tired of her sh*t.

Beauty is skin deep, ugliness goes clear to the bone.


Posted By: 72LincolnAbe
Date Posted: 13-November-2017 at 9:09AM
Originally posted by aquartlow aquartlow wrote:

If you don't know for sure about the exhaust manifold having a crack or hole in it, ( and if you have '72-'86 heads) check the air pump fitting/tubing that attaches to the rear of both heads. The tubing rots/rusts after a period of time(yes, time for it to happen has long since passed). If you find that this is the culprit for the leak, you can replace the crossover tube or at least just the ends(after cutting and welding the tubes shut) or you can strategically drill a hole in the PS firewall so you can install/drive the necessary welch plug to stop the leak(after removing all remnants of the crossover tubing of course). The ends of the crossover tube are held in place with (IIRC) 1/2" headed bolts. Good luck and let us know what you find.


Ah! I had no idea that this car would have had that! I've done that to a few GM cars through the years! I'll look into it, and get back to ya! Thanks!!


Posted By: aquartlow
Date Posted: 13-November-2017 at 9:23AM
Even if your particular model 429-460 from '72-'87 did not come with the thermactor pump you will still have the ports for it. You should be able to see the ports on the radiator side of the heads, they have welch plugs driven into the ports on that side to seal them, the firewall side either has the welch plugs(no air/thermactor pump) or the crossover tubing connecting both heads. This image shows the crossover tube and the plumbing to the pump.


-------------
www.supermotors.net/22468
Yeah, It's a Hybrid...It burns gas and tires.

No matter how good she looks, somebody, somewhere, is tired of her sh*t.

Beauty is skin deep, ugliness goes clear to the bone.


Posted By: 72LincolnAbe
Date Posted: 13-November-2017 at 9:44AM
So does that mean that if it doesn't have that system, it could have rotted plugs?


Posted By: aquartlow
Date Posted: 13-November-2017 at 9:54AM
It could, yes. If there is no welch plug at the front of the head, the port may not have been drilled at the factory, thus there would be no rear port either. It sounds confusing, but I have found most earlier model 429/460 heads have no EGR/thermactor system so no ports, but I have seen just a few that did(may be a California only deal). Every '73 to '79 or so(casting D3VE-A2A) cylinder head had the ports. When dealing with Ford/Lincoln/Mercury I have found that you can NEVER say never and/or always when pertaining to their vehicles, systems or parts.

-------------
www.supermotors.net/22468
Yeah, It's a Hybrid...It burns gas and tires.

No matter how good she looks, somebody, somewhere, is tired of her sh*t.

Beauty is skin deep, ugliness goes clear to the bone.


Posted By: 72LincolnAbe
Date Posted: 13-November-2017 at 10:22AM
Ok cool, I gotcha. Car will be coming home in the next few days, so gimme a little time to check it out. Ill for sure get back at ya! Thanks!!!!


Posted By: aquartlow
Date Posted: 13-November-2017 at 10:29AM
Glad to help if possible! Hope the leak is as simple as a welch plug/tube fitting and not a costly manifold, although there WILL be curse words when dealing with a rear welch plug. Maybe the tubing can be saved/fixed and just re-installed, a BUNCH easier than installing a plug. Good luck.

-------------
www.supermotors.net/22468
Yeah, It's a Hybrid...It burns gas and tires.

No matter how good she looks, somebody, somewhere, is tired of her sh*t.

Beauty is skin deep, ugliness goes clear to the bone.


Posted By: Big Bird
Date Posted: 13-November-2017 at 10:58AM
IF you have a bad welch plug at the rear, and if the holes for mounting the thermactor tube are threaded, you can make up a set of block-offs and bolt them to the rear so they cover the thermactor ports.
Just use ultra-copper or another high heat sealer with the blockoff plates.
Otherwise, a 429 manifold should fit as well. (Pre-catalytic converter)


-------------
The above post should be read in a "Grumpy Old Man" voice.
Almost forgot: "Get off my lawn!!!"
Randy
1979 T-Bird
2006 GMC Sierra


Posted By: californiajohnny
Date Posted: 13-November-2017 at 6:15PM
yeah i've always hated that stupid rear crossover tube, only thing i've found it useful for is to hook the cherry picker to and pull the engine out with Wink

-------------
JOHN
74 GRAN TORINO S&H CLONE
74 CORVETTE COUPE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U


Posted By: Big Bird
Date Posted: 14-November-2017 at 8:55AM
Originally posted by californiajohnny californiajohnny wrote:

yeah i've always hated that stupid rear crossover tube, only thing i've found it useful for is to hook the cherry picker to and pull the engine out with Wink
If you break off the blocks on the ends of the tubes and bolt them on backwards, they become free block-offs. Wink


-------------
The above post should be read in a "Grumpy Old Man" voice.
Almost forgot: "Get off my lawn!!!"
Randy
1979 T-Bird
2006 GMC Sierra


Posted By: 72LincolnAbe
Date Posted: 14-November-2017 at 9:40AM
Ok, I'll be looking into all this as soon as the car is home, just need to get a night to get it done! I'll check it out!


Posted By: aquartlow
Date Posted: 14-November-2017 at 11:46AM
These are getting rare, especially for the passenger side, if wanted/needed you may want to act fast:
  https://www.ebay.com/itm/NOS-Ford-429-460-Exhaust-manifold-No-Reserve-1972-1974-1975-1976-1977-1973/391921963691?hash=item5b405e92ab:g:UYoAAOSwdjdaAjKA&vxp=mtr" rel="nofollow - https://www.ebay.com/itm/NOS-Ford-429-460-Exhaust-manifold-No-Reserve-1972-1974-1975-1976-1977-1973/391921963691?hash=item5b405e92ab:g:UYoAAOSwdjdaAjKA&vxp=mtr

-------------
www.supermotors.net/22468
Yeah, It's a Hybrid...It burns gas and tires.

No matter how good she looks, somebody, somewhere, is tired of her sh*t.

Beauty is skin deep, ugliness goes clear to the bone.


Posted By: 72LincolnAbe
Date Posted: 17-November-2017 at 7:57AM
As much as I'd like to purchase that, I don't know yet what's wrong with what we have. Car is coming home tomorrow afternoon. I'll figure it out eventually. If I have to build a set of headers I will. This car will be saved!


Posted By: 72LincolnAbe
Date Posted: 22-November-2017 at 2:05AM
https://imgur.com/a/BiF9J

If you look at these 2 pics, it's clearly cracked. So...... I need a manifold! Yay lol.

My search will commence after Christmas Beer


Posted By: californiajohnny
Date Posted: 22-November-2017 at 2:48AM
i may know where there's a good manifold, i saw a few there, when i was there buying parts


-------------
JOHN
74 GRAN TORINO S&H CLONE
74 CORVETTE COUPE CUSTOM
90 S10 BLAZER 4X4 LIFTED
77 CELICA CUSTOM
75 V8 MONZA SUPERCHARGED
79 COURIER VERT. SLAMMED
75 VEGA V6 5 SPD
70 CHEV C10 P/U



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